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https://issues.apache.org/jira/browse/HIVE-7607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao updated HIVE-7607:
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Attachment: HIVE-7607.2-spark.patch
In the last patch I overlooked that the code is already in the "".. instanceof
List" condition. Now fixing it..
In default, the List in {{Map<?, List<?>>}} would just be interpreted by
{{toString()}}, which I think its a bit inappropriate. According to this
[JIRA|https://issues.apache.org/jira/browse/HADOOP-4084], looks to me like it
should be interpreted recursively instead.
> Spark "Explain" should give useful information on dependencies
> --------------------------------------------------------------
>
> Key: HIVE-7607
> URL: https://issues.apache.org/jira/browse/HIVE-7607
> Project: Hive
> Issue Type: Improvement
> Components: Spark
> Reporter: Chao
> Attachments: HIVE-7607.1-spark.patch, HIVE-7607.2-spark.patch
>
>
> Currently, when using "Explain" under Spark mode, it displays dependency
> information like this:
> {code}
> STAGE PLANS:
> Stage: Stage-1
> Spark
> Edges:
> Reducer 2
> [org.apache.hadoop.hive.ql.plan.SparkWork$Dependency@29a09c49,
> org.apache.hadoop.hive.ql.plan.SparkWork$Dependency@6f7491f8]
> DagName: chao_20140804145151_acc57d5a-27fa-44c0-aabc-052b318ed832:2
> ....
> {code}
> I think it should be improved by giving more information on the dependencies,
> such as work information and edge type.
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